EVT_FAST access to NCSN waveforms

November 16, 2001

The USGS Northern California Seismic Network (NCSN) has recorded seismic waveforms for
events in northern California from 1984 through present time.
These data are archived at the NCEDC, and are now available to users via the EVT_FAST
automated event waveform retrieval system through web and email requests.
The EVT_FAST system allows users to request all of the waveforms for a specified
NCSN event with a simple one-line request. Users can request event waveform data
in one of the following formats:

SAC binary

SAC ascii

AH (XDR)

The NCEDC is committed to distributing all waveform data and corresponding instrument
response data in the standard SEED format, and is actively working with the USGS
to assemble the required instrument response data for the NCSN waveforms.
Until the instrument response meta-data is available,
the EVT_FAST system provides a quick and easy way for users to acquire NCSN waveform
data.